Navigation Links
Sweet nanotech batteries
Date:4/10/2008

Nanotechnology could improve the life of the lithium batteries used in portable devices, including laptop computers, mp3 players, and mobile phones. Research to be published in the Inderscience publication - International Journal of Nanomanufacturing - demonstrates that carbon nanotubes can prevent such batteries from losing their charge capacity over time.

Researchers at the Shenyang National Laboratory for Materials Science, in China, have been investigating how to improve the kind of rechargeable batteries that are almost ubiquitous in today's portable devices. Mobile phones, mp3 players, personal digital assistants (PDAs), and laptop computers usually use lithium-ion batteries to give them portability. However, Li-ion batteries suffer from degradation especially when they get too hot or too cold and eventually lose the capacity to be fully recharged. This means a loss of talk time for mobile phone users and often no chance to use a laptop for the whole of a long haul flight.

The problem of the slow degradation of Li-ion batteries is usually due to the formation of a solid electrolyte interphase film that increase the batteries internal resistance and prevents a full recharge. Researchers have suggested using silicon in the composition of the negative electrode material in Li-ion batteries to improve charge capacity. However, this material leads to even faster capacity loss as it repeatedly alloys and then de-alloys during charge-discharge cycles.

Shengyang's Hui-Ming Cheng and colleagues have turned to carbon nanotubes (CNTs) to help them use silicon (Si) as the battery anode but avoid the problem of large volume change during alloying and de-alloying. Carbon nanotubes resemble rolled-up sheets of hexagonal chicken wire with a carbon atom at the crossover points of the wires and the wires themselves being the bonds between carbon atoms, and they can be up to a millimeter long but mere nanometers in diameter.

The researche
'/>"/>

Contact: Hui-Ming Cheng
cheng@imr.ac.cn
Inderscience Publishers
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Slow federal action to oversee nanotechnology leaves room at the bottom
2. NYU chemist Seeman recognized for founding, establishing the field of structural DNA nanotechnology
3. New nanotechnology television series does sweat the small stuff
4. Federal nanotech risk research plan still comes up short
5. Religion colors Americans views of nanotechnology
6. Nanotechs health, environmental impacts worry scientists and the public
7. National Nanotechnology Initiative releases its fiscal year 2009 budget and highlights
8. Fiber-based nanotechnology in clothing could harvest energy from physical movement
9. Advance Nanotech Announces Shareholder Proxy Vote Results
10. New funding to charge energy research at UCL and the London Centre for Nanotechnology
11. European Commission gives grant to investigate transatlantic oversight of nanotech
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/25/2014)... A new study by researchers from the University ... tiny nanosystems function, unlocking the potential to create ... study, which has been published in the prestigious ... a novel laser technique to examine in rich ... a small cluster containing an acetylene molecule and ...
(Date:7/25/2014)... WABC Radio show out of New York City, ... will be hosting California-based Vet-Stem, Inc.’s Founder and CEO, Robert ... pets. Dr. Harman first visited the show in November ... pets suffering from osteoarthritis and other degenerative diseases, as well ... , Young has invited Dr. Harman back to dial down ...
(Date:7/25/2014)... 25, 2014  Galmed Pharmaceuticals Ltd. (Nasdaq: ... the development and commercialization of a once-daily, oral therapy ... today announced financial results for the period ended June ... , Reported cash and cash equivalents totaling $37.4 ... December 31, 2013.  , Reported a net loss ...
(Date:7/25/2014)... Biotech Ltd. (Nasdaq: SVA ), a leading provider ... announced that it will release its unaudited financial results for ... on Thursday, August 14, 2014 EDT. The Company will host ... August 15, 2014, at 8:00 a.m. EDT (Friday, August 15, ... Company,s financial results and provide an update on recent corporate ...
Breaking Biology Technology:Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster 2Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster 3Robert J. Harman, DVM, Founder and CEO of Vet-Stem, Inc. to Join New York Radio Host Lorry Young in Upcoming Episode of A “Paws” For Your Pet 2Robert J. Harman, DVM, Founder and CEO of Vet-Stem, Inc. to Join New York Radio Host Lorry Young in Upcoming Episode of A “Paws” For Your Pet 3Galmed Pharmaceuticals Reports First Half 2014 Financial Results 2Galmed Pharmaceuticals Reports First Half 2014 Financial Results 3Galmed Pharmaceuticals Reports First Half 2014 Financial Results 4Galmed Pharmaceuticals Reports First Half 2014 Financial Results 5Galmed Pharmaceuticals Reports First Half 2014 Financial Results 6Sinovac to Host Conference Call to Report Second Quarter 2014 Unaudited Financial Results 2
... Researchers Comprise One of the Main User Groups of febit,s ... Simplified and Automated Microarray Technology, MEDFORD, Mass., ... it will introduce the Geniom RT Analyzer(R) to,the U.S. market ... in Boston., RNA-researchers, one of the main user groups ...
... SANTA CLARA, Calif., April 22 /PRNewswire/,-- Agendia BV, ... of molecular,diagnostics, and Agilent Technologies, Inc. (NYSE: ... to collaborate to develop new in-vitro,diagnostic tests. In ... Agendia products will continue to be supplied on ...
... SUPG ), a pharmaceutical company dedicated to the discovery, ... malignancies, invites all interested parties to listen and,view a ... at 9:30 a.m. ET,(6:30 a.m. PT) to approximately 12:00 ... Investors and interested parties may access the webcast ...
Cached Biology Technology:febit to Introduce Geniom RT Analyzer(R) to U.S. Market at RNAi World Congress 2febit to Introduce Geniom RT Analyzer(R) to U.S. Market at RNAi World Congress 3Agendia and Agilent Announce Plans to Jointly Develop New Diagnostic Tests, Extend Supply Agreement 2Agendia and Agilent Announce Plans to Jointly Develop New Diagnostic Tests, Extend Supply Agreement 3
(Date:7/25/2014)... a pleiotropic factor characterized by the existence of ... that confer to the protein deeply different characteristics. ... myelination occurring during development and the different phases ... degeneration, axon regrowth, remyelination and target reinnervation, Researchers ... that the soluble NRG1 upregulation observed in Schwann ...
(Date:7/25/2014)... of a molecular testing panel developed at UPMC ... initial surgery for patients with thyroid nodules and ... Cancer Institute (UPCI), partner with UPMC CancerCenter., The ... and other diagnostic testing agencies, improved the chances ... 30 percent, according to the study published this ...
(Date:7/24/2014)... -- Keryx Biopharmaceuticals, Inc. (Nasdaq:KERX) (the "Company") announced the ... Phase 3 study of Zerenex (ferric citrate), the Company,s ... of hyperphosphatemia in patients with end-stage renal disease (ESRD) ... delivery with FErric CiTrate in EsrD) was published online ... of Nephrology ( JASN ). , ...
Breaking Biology News(10 mins):Test increases odds of correct surgery for thyroid cancer patients 2Test increases odds of correct surgery for thyroid cancer patients 3Zerenex™ (ferric citrate) long-term Phase 3 study results published in JASN 2Zerenex™ (ferric citrate) long-term Phase 3 study results published in JASN 3Zerenex™ (ferric citrate) long-term Phase 3 study results published in JASN 4
... , AMIA, the association for professionals in biomedical and ... the National Coordinator on Health Information Technology (DHHS/ ONCHIT), ... meaningful use of electronic health records (EHRs) over the ... Policy Committee (HITPC), on the continuation of support for ...
... When patients receive a bone marrow transplant, they are getting ... are needed when a patient is low on red blood ... be caused by cancer or even cancer treatments such as ... transplant might not succeed because the transplanted stem cells don,t ...
... Spanish . Fernando Rendo, biologist at the ... with the intention of completing the genealogical tree ... Country Autonomous Community (CAPVEAE) and Navarre. Concretely, he opted for ... (a kind of variation in the DNA sequence) that can ...
Cached Biology News:AMIA on meaningful use: Invest in people and technology 2How long do stem cells live? 2Basque thesis investigates wide diversity within certain ovine, bovine and equine breeds 2Basque thesis investigates wide diversity within certain ovine, bovine and equine breeds 3
MitoScreen (JC-1) Kit , 100 tests Consult technical datasheet for details....
Large-fragment, single-stranded carrier DNA of the highest quality, perfectly suited for all types of yeast transformation....
... , Customer Peptide Synthesis , 20 Amino Acid length ... 20 mg will return to customer for future usage conjugation ... , Maintenance 102 days/each , ... x5 /each , Test bleed (app. 5 ml) ...
Request Info...
Biology Products: